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Today on New Scientist: 17 April 2013

Lab-grown kidney blazes trail for bespoke donor organs

The successful transplant of lab-grown rat kidneys is just the start - teams are working on a host of replacement body parts, from noses to hearts

Ozone kills by hampering gas exchange in lungs

Mystery of how pollutant kills solved by study showing ozone stifles breathing

Spring warmth sets Atlantic aflame

This fiery infrared satellite image shows the Gulf Stream as it bends and stretches eastward toward Europe

Free for all? Lifting the lid on a Wikipedia crisis

The "free encyclopedia that anyone can edit" is too male, too Western and too demanding - fixing it will take some radical changes, says Jim Giles

Extinction debt suggests endangered species are doomed

Today's extinctions are probably the result of ecosystem damage from the early 20th century, suggesting that our own extinction legacy could be far worse

Hints of oldest human skin found on ape-like ancestor

An Australophithecus sediba fossil may yield new clues to our evolution if skin traces are confirmed - such as when we lost our body hair and left the trees

Magnetic death leaves Earth-like exoplanets dried out

Seemingly habitable worlds may actually be too dry for life if their magnetic shielding isn't strong enough, leaving them exposed to damaging radiation

Kids befriend robots at Cambridge science fair

Children show how robot-human interaction will work at this year's Cambridge Science Festival in Boston

Faint flashes reveal moment a black hole is born

An outpouring of ghostly neutrinos from the core of a dying star triggers weak but noticeable bursts of light that signal the birth of a black hole

Crowd diagnosis could spot rare diseases doctors miss

Diagnosing rare illnesses could get easier, thanks to new web-based tools that pool information from a wide variety of sources

Briefing: Do earthquakes threaten Iran's nuclear facilities?

A magnitude 7.8 earthquake has rocked Iran, just a week after another major quake struck the country. New Scientist explores the nuclear risks

World's biggest telescope gets green light

The Thirty Meter Telescope - due to be the world's widest eye on space - has got the go-ahead for construction on the summit of Mauna Kea, Hawaii

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